MR
Martha Richardson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Martha Richardson across the 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Richardson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Law firm |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 420 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Stenographer |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1920 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Richardson | Daughter | — | 12 | ~1928 |
| Martha Richardson | Daughter | — | 20 | ~1920 |
| Henry Richardson | Head | — | 53 | ~1887 |
| Jean Richardson | Spouse | — | 50 | ~1890 |
| Henry Richardson | Son | — | 17 | ~1923 |
| Slow Richardson | Son | — | 9 | ~1931 |
| Jean Richardson | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Salt Lake, …
Daughter, age 10
Salt Lake, Utah · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Utah |
| Age at First Marriage | W |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Daughter, age 20
Salt-Lake-County, Utah · implied b. ~1920 — 7 household members
| Surname | Richardson |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Stenographer |
| Industry | Law firm |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 420 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Martha Richardson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Richardson
Daughter · 1940 · age 20 · b. ~1920 · Utah
★ You are viewing this record
Sibling
Henry Richardson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Richardson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Slow Richardson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Richardson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04223-00389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hines, Helen C. Hines | 41 | Wife | — | Missouri |
| 2 | William E. Hines | 16 | Son | — | Missouri |
| 3 | Donald F. Hines | 15 | Son | — | Washington |
| 4 | Frank T. Hines | 15 | Son | — | Washington |
| 5 | Alba B. Young | 55 | Head | Metallurgical Engineer | Utah |
| 6 | Georgia A. Young | 49 | Wife | — | New York |
| 7 | Edith Grobli | 36 | Maid | Maid | Utah |
| 8 | Richard P. Middleton | 38 | Head | Medical Doctor | Utah |
| 9 | Lucy R. Middleton | 34 | Wife | — | Utah |
| 10 | Richard G. Middleton | 6 | Son | — | Utah |
| 11 | Mary Rose Middleton | 4 | Daughter | — | Utah |
| 12 | Anne Middleton | 0 | Daughter | — | Utah |
| 13 | Henry G. Richardson | 53 | Head | Contract Engineer | Utah |
| 14 | Jean M. Richardson | 50 | Wife | — | Utah |
| 15 | Martha Richardson THIS PERSON | 20 | Daughter | Stenographer | Utah |
| 16 | Jean Richardson | 19 | Daughter | — | Utah |
| 17 | Henry G. Jr. Richardson | 17 | Son | — | Utah |
| 18 | Dorothy Richardson | 12 | Daughter | — | Utah |
| 19 | Slow M. Richardson | 9 | Son | — | Utah |
| 20 | Ulrich R. Bryner | 37 | Head | Medical Doctor | Nevada |
| 21 | Virginia C. Bryner | 31 | Wife | — | Utah |
| 22 | John C. Bryner | 8 | Son | — | Utah |
| 23 | Gerald B. Bryner | 5 | Son | — | Utah |
| 24 | Daniel P. Bryner | 1 | Son | — | Utah |
| 25 | Rachel Nelson | 18 | Maid | Maid | Utah |
| 26 | John Glauser | 55 | Head | Manager | Switzerland |
| 27 | Lena M. Glauser | 54 | Wife | — | Switzerland |
| 28 | Helen M. Glauser | 19 | Daughter | Beautician | Utah |
| 29 | Gloria A. Glauser | 16 | Daughter | — | Utah |
| 30 | Reed M. Glauser | 14 | Son | — | Utah |
| 31 | Adolph E. Christensen | 50 | Head | Engineering Contractor | Utah |
| 32 | Catherine B. Christensen | 47 | Wife | — | Utah |
| 33 | Katherine Christensen | 21 | Daughter | — | Utah |
| 34 | Elaine Christensen | 18 | Daughter | — | Utah |
| 35 | William Christensen | 7 | Son | — | Utah |
| 36 | Maurice Yates | 31 | Head | Manager | Rhode Island |
| 37 | Vera R. Yates | 32 | Wife | — | Utah |
| 38 | Harry G. Yates | 2 | Son | — | Utah |
| 39 | Mary Kelchman | 21 | Maid | Maid | Wyoming |
| 40 | Emil G. Jensen | 58 | Head | Manager | Utah |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)